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Subpanel Replacement
A sub-panel solves a space problem; a service upgrade solves a capacity problem. They are not interchangeable. A panel is the one part of a house every other circuit depends on, so it is the part worth measuring before anyone touches it.
Subpanel Replacement in O’Fallon and across St. Charles, St. Louis, Lincoln and Warren counties.
One electrician, start to finish. Seventeen years in the trade and four running his own shop out of O’Fallon.
5.0 from 94 Google reviews · BBB A+ since 2022
What this work actually involves
The load gets calculated against what the house actually runs, not against a rule of thumb. If the existing service carries it, you hear that.
A number follows a measurement here, never a guess. You get told what the reading was and what it means before any work is agreed, including on the days when the answer is one loose connection.
Permitted and inspected where the address requires it, labeled at the panel, and done by the person who diagnosed it rather than handed down a chain.
When people call about this
- A panel brand an inspector flags on sight
- Scorch marks, heat or a smell at the cover
- No room left for a new circuit
- Fuses instead of breakers
Why people choose Clint for it
What the reviews keep mentioning is being told what the problem actually was. That is what an owner-operated shop can do and a dispatch model structurally cannot.
Seventeen years in the trade, 5.0 from 94 Google reviews, and BBB accredited A+ since December 2022.
Where this is done
O’Fallon and the surrounding St. Charles County suburbs, out through St. Louis County and St. Louis City, and into Lincoln and Warren counties. Roughly a fifty mile radius.
See the full service area, or the rest of our panels & service work.
Why the bus matters more than the breakers
Breakers are replaceable parts. The bus bar they clip onto is not: it is the panel. Heat damage there shows as discolouration, pitting, or a breaker that will not sit tight, and none of those improve on their own.
That is why a panel assessment means taking the cover off rather than reading the label on the door. A panel with a sound bus and a tired breaker is a cheap repair. A panel with a damaged bus is a replacement, and you are told which you have with the reason attached.
How the load actually gets calculated
A load calculation is arithmetic, not a guess. Square footage sets a baseline, then the fixed appliances get added at their nameplate ratings: the range, the dryer, the water heater if it is electric, the air conditioning, and anything else with its own circuit. The largest of the heating or cooling loads counts, not both.
What comes out is a number in amps. Compare it to the service rating and you know whether the house is near its limit or nowhere close. That is the whole decision, and it is why the measurement happens before anyone quotes a panel.
Panels: full, overloaded, or obsolete
Three different problems get called the same thing. A full panel has no space left but adequate service. An overloaded service cannot carry the house. An obsolete panel has a known defect or no available parts. Each has a different and very differently priced answer.
The load calculation and a look at the bus with the cover off decide which one you have. A sub-panel solves the first for a fraction of the third.
What the price actually depends on
Three things move the number on almost every job: how far the run has to travel and what it passes through, whether the existing panel has space and the service has capacity, and whether the municipality wants a permit and an inspection. None of those is visible from the phone call, which is why the measurement comes before the quote.
What does not move it is urgency theatre. There is no inflated figure waiting to be discounted, and no bundle built so the thing you called about cannot be bought on its own.
Permits, inspections and why they vary here
Requirements genuinely differ across this metro. O’Fallon, St. Charles, St. Peters, the St. Louis County municipalities and St. Louis City each run their own process, and what one treats as a minor repair another permits and inspects.
Work that needs a permit gets one, and work that needs an inspection is left ready for it with the panel labeled and the junctions accessible. That matters most before a closing, when an inspector’s written item becomes someone’s negotiating position.
“Clint did an excellent job installing two bathroom exhaust fans. He installed high-quality fans that were far superior to the ones I had purchased from a big box store. I highly recommend his services.”
David Hinners · Google review
How the visit goes
- The call
You describe what the house is doing and what prompted it: a tripping breaker, an inspector’s note, a planned addition. That shapes what gets measured first.
- The measurement
Load across the service under real conditions, voltage at the main, the condition of every lug and the bus. On an older panel, the breaker brand gets identified, because some have no listed replacement still made.
- The finding
You get the number and what it means. If the service carries what the house asks of it, you hear that, and the conversation becomes a sub-panel or a single circuit instead of a service upgrade.
- The work
Permit where required, utility coordinated for the disconnect, new equipment installed, every circuit identified and labeled, and the site left ready for the inspector.
What the job includes
- A load calculation against what the house actually runs, given to you as a number
- Permit application where the municipality requires one
- New panel, breakers and a legible circuit directory
- Utility coordination for the disconnect and reconnect
- Grounding and bonding brought to current requirements
- The site left ready for inspection, and the inspection attended
What it does not
- Drywall repair beyond the panel opening
- Appliance repair, which is a different trade
- Work on the utility side of the meter, which is the utility’s own
If the fix belongs to another trade, you get the name of one rather than a price from this one. See the work itself, or send the details.
Related panels & service work
Subpanel Replacement across the metro
Housing stock varies sharply across the counties here, and so does the work. Same trade across five jurisdictions out of O’Fallon, with a different inspection process in each.
St. Charles County
Twenty and thirty year old subdivisions where nothing has failed and the service is simply at its limit. That is the recurring call.
St. Louis County
Older stock that has been worked on repeatedly, so a panel here has often been added to three or four times by different hands.
St. Louis City
Fishing a wall is harder here and sometimes not possible, so the honest answer about opening one comes before the work rather than during it.
The whole working radius is mapped on the service areas page.
Questions worth asking first.
Do I need a permit for panel work?
In every municipality in this footprint, yes, plus an inspection and a scheduled utility disconnect. That is why a panel change is a planned day rather than a same-day call.
Do I need a bigger service, or just more space in the panel?
Those are different problems. A full panel with spare capacity takes a sub-panel or tandem breakers. A panel that is out of capacity takes a service upgrade, and the load calculation tells us which one you have before anything is ordered.
Will the power be off all day?
A panel change means the service is off while the work happens, usually most of a working day. You will be told the window before the day starts, and the utility and inspection timing are arranged around it.
How long have you been doing this?
Clint has seventeen years in the trade and has been running his own shop out of O’Fallon since 2022.
What do your reviews say?
5.0 from 94 Google reviews, and A+ accreditation with the BBB held since 2022. The reviews are on the reviews page with links to where each was posted.
Talk to the person who will do the work.
No dispatcher, no salesman. Clint takes the call and Clint does the job. Subpanel Replacement in O’Fallon and across the metro.
Hours are Mon-Thu 8-5, Fri 8-4, Sat 10-3 · or type it out.